# Memory components

The RAM and ROM components are two of the more useful components in Logisim's built-in libraries. However, because of the volume of information they can store, they are also two of the most complex components.

Documentation about how they work within a circuit can be found on the RAM and ROM pages of the Library Reference. This section of the User's Guide explains the interface allowing the user to view and edit memory contents.

> Logisim's integrated hex editor
> Poking memory
> Pop-up menus and files

32K x 8 UV EPROM

Next: Hex editor.